19756685

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{223}}^1$

素因数の和:317

約数の個数: 32

約数和(自身を含む): 27095040

約数和(自身を除く): 7338355

約数列:

[1, 5, 13, 29, 47, 65, 145, 223, 235, 377, 611, 1115, 1363, 1885, 2899, 3055, 6467, 6815, 10481, 14495, 17719, 32335, 52405, 84071, 88595, 136253, 303949, 420355, 681265, 1519745, 3951337, 19756685]

約数ペア:

[(1, 19756685), (5, 3951337), (13, 1519745), (29, 681265), (47, 420355), (65, 303949), (145, 136253), (223, 88595), (235, 84071), (377, 52405), (611, 32335), (1115, 17719), (1363, 14495), (1885, 10481), (2899, 6815), (3055, 6467)]